AU603152B2 - Sealing mechanism for sealing aperture on closed vessel - Google Patents

Sealing mechanism for sealing aperture on closed vessel Download PDF

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Publication number
AU603152B2
AU603152B2 AU80997/87A AU8099787A AU603152B2 AU 603152 B2 AU603152 B2 AU 603152B2 AU 80997/87 A AU80997/87 A AU 80997/87A AU 8099787 A AU8099787 A AU 8099787A AU 603152 B2 AU603152 B2 AU 603152B2
Authority
AU
Australia
Prior art keywords
aperture
washer
sealing
bolt
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU80997/87A
Other versions
AU8099787A (en
Inventor
Yoshihiro Ochiai
Shigemi Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanden Corp
Original Assignee
Sanden Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanden Corp filed Critical Sanden Corp
Publication of AU8099787A publication Critical patent/AU8099787A/en
Application granted granted Critical
Publication of AU603152B2 publication Critical patent/AU603152B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/002—Means for preventing rotation of screw-threaded elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F01C1/103—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines
    • F01C20/24—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves
    • F01C20/26—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves using bypass channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B43/001—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts for sealing or insulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/955—Locked bolthead or nut
    • Y10S411/974—Side lock
    • Y10S411/984—Longitudinal
    • Y10S411/99—Washer tongue-held

Description

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L9 SKOj 52 S F Ref: 42452 FORM COMMONWEALTH OF AUSTRALIA PATENTS ACT 1952 COMPLETE SPECIFICATION This document contains the amendments made under Section 49 and is correct for printing.
(ORIGINAL)
FOR OFFICE USE: Class Int Class Complete Specification Lodged: Accepted: Published: Priority: Related Art: Name and Address of Applicant: Address for Service: Address for Service: Sanden Corporation Kotobuki-cho Isesaki-shi Gunma 372
JAPAN
Spruson Ferguson, Patent Attorneys Level 33 St Martins Tower, 31 Market Street Sydney, New South Wales, 2000, Australia Complete Specification for'the invention entitled: Sealing Mechanism for Sealing Aperture on Closed Vessel The following statement is a full description of this invention, including the best method of performing it known to me/us 5845/3 S&F CODE: 61189 rE TAstMPF i -F MAIL OFFIC R 5845/2 1 rC- 7TrD AND A~I"ENDAENTS S
ABSTRACT
A sealing mechanism for sealing an aperture which is formed through a housing of a closed vessel comprises a bolt which has a screw thread and flange portion. A seating portion is formed on one end opening aperture.
A rotation preventing portion is formed on one end opening aperture. A rotation preventing portion is formed on the surface of the seating portion, and a washer is disposed on the seating portion. Washer is made of metals softer than that of the housing. The washer is deformed and engaged with the rotation preventing portion to thereby prevent rotation.
Therefore, the inner end surface of the washer is not rubbed on the surface of the seating portion. As a result, the sealing between those surfaces can be maintained.
0 0 0 9 i9 ,O
B
RJE/2448z 2 ueclaration was/wer the first application(s- made in a Convention country in respect of the invention the subject of the application.
Declared at Isesaki this day of 19 67 SFP4 To: The Commissioner of Patents Sinatureof Declarant(s)11/81 Technical Field This invention relates to a sealing mechanism, and more particularly, to a sealing mechanism for securing a bolt on a closed vessel, such as, for example, a compressor housing of a compressor.
Background of this Invention A closed vessel, which has functional parts therein, such as a compressor housing is required to have high sealing performance. However, the conventional compressor housing has some apertures for example to secure valves for enclosing refrigerant, to pass through the axis portion of a bolt for fixing the internal parts therein from the exterior, or to secure a blind plug. Therefore, there is a possibility of leakage of fluid and oil in the compressor housing through the apertures even though the apertures are closed by the valves or plugs.
oBecause of this, sealing mechanisms to securely seal the apertures 0. are well known in the prior art. These mechanisms include washers made of relatively soft metal such as aluminium alloy or copper and bolts made of relatively hard metal such as iron. In this sealing mechanism, when the o bolts are screwed or unfastened on the outer surface of the compressor housing, the washers are rotated together with the head portions of the bolts, and both the surfaces of the washers and the opening of the apertures are rubbed against each other. Therefore, those surfaces become 0 00 o •o rough and there is a possibility of a reduction of sealing performance between those surfaces.
For instance, if the opening of the aperture of a compressor housing, which is made of soft aluminium alloy, and the surface of a washer, which is made of copper, are rubbed against each other by rotation of a bolt, the aluminium alloy is scraped from the opening of the aperture by the washer since copper is softer than aluminium alloy. The aluminium alloy which is scraped from the opening is attached to the surface of the v.!asher. The 30 aluminium alloy which is thereby attached continues to scrape more Pis aluminium alloy from the opening of the aperture. Thus, the sealing performance of the compressor housing is decreased and refrigerant fluid or oil is thereby caused to leak out. As a result, there is the possibility of breakdown of the compressor. Furthermore, it is also difficult to replace an old bolt with a new one because of the above and maintenance becomes difficult.
Summary of the Invention It is a primary object of this invention to provide an improved sealing mechanism for a sealing aperture which is formed through a closed RJE/2448z -3vessel.
A sealing mechanism for sealing an aperture which is formed through a housing of a closed vessel according to one embodiment of this invention comprises a bolt which has a screw thread and an opening which is formed on the aperture which has a screw thread therein. A rotation preventing portion is formed on the surface of the opening, and a washer is disposed on the opening, which is made of metals softer than the housing. The washer is deformed and interfitted with the rotation preventing portion by securing the bolt thereby to be prevented from rotation.
Further objects, features and other aspects of this invention will be understood from the following detailed description of a preferred embodiment of this invention with reference to the annexed drawings.
Brief Description of the Drawings Fig. 1 is a cross-sectional view of a sealing mechanism for sealing an aperture on a closed vessel in accordance with one embodiment of this invention.
i Fig. 2 is an exploded perspective view of a sealing mechanism for oO, sealing an aperture on a closed vessel shown in Fig. 1.
Fig. 3 is an exploded perspective view of a sealing mechanism for sealing an aperture on a closed vessel in accordance with another further embodiment of this invention.
Detailed Description of the Preferred Embodiments o oNith reference to Figs. 1 and 2, the construction of a sealing mechanism for sealing an aperture which is formed through a closed vessel .0,'25 according to one embodiment of this invention is shown. Closed vessel 1 includes a housing 10 on which an aperture is formed therethrough. The housing 10 is formed of soft material, for example an aluminium alloy.
Thread portion 111 is formed on the inner surface of aperture 11. Seating portion 112 is formed on one end opening of aperture 11 to seat on washer 2. A concave portion 113 is partially formed on inner edge portion of seating portion 112 along the aperture 11. This concave portion 113 can be replaced with convex portions 114 as shown in Figure 3. It will further be appreciated by the man skilled in the art that although concave portion 113 is depicted in this embodiment as being located on the radially inner edge of seating portion 112, a concave portion might equally be located on the radially outer edge of seating portion 112, as might the convex portions 114 of Fig. 3.
-i Z /114 ./1 7's N1 Nasher 2 is made of soft metallic material, for example copper, and has an inner diameter substantially equal to outer diameter of aperture 11. Bolt 3 comprises a head portion with flange portion 31 and screw threaded 32 extending from one end side surface of the head portion.
In this embodiment, while bolt 3 is screwed into aperture 11 of housing 10, flange portion 31 is fitted against the side surface of washer 2 and washer 2 may be rotated together with flange portion 31 of bolt 3.
During rotation of bolt 3, the inner portion of washer 2 is gradually deformed and interfitted into concave portion 113 by the axial force of bolt 3. This is because washer 2 is made of copper and is softer than housing 10 which is made of aluminium alloy. Therefore, washer 2 is prevented from rotation. As a result, the inner end surface of washer 2 is not rubbed on the surface of housing 10 thereby maintaining intact the oO surface of housing 10. The deformation of washer 2 occurs only on the inner surface thereof, therefore, the sealing between washer 2 and housing o 10 may be maintained. When bolt 3 is unfastened, washer 2 is also prevented from rotation whereby the same efficiency as when bolt 3 is screwed can be accomplished.
This invention has been described in detail in connection with the preferred embodiment but these are examples only and the invention is not restricted thereto. It will be easily understood by those skilled in the ,oo art that other variations and modifications can be easily made within the o scope of this invention.
a o R/t I o:

Claims (4)

1. A vessel comprising a housing having an aperture having an end opening with a seating portion formed radially around said aperture end opening and against which a washer, made of a metal softer than that of the housing, is sealed by a flange portion of a bolt having a screw-threaded shank extending into the aperture, characterised by rotation preventing means formed on the surface of the seating portion for deforming and engaging the washer to prevent the washer from rotating with the bolt.
2. A vessel according to claim 1, wherein the rotation preventing means comprises at least one concave portion.
3. A vessel according to claim 2, wherein the concave portion is formed on the radially inner or outer edge of the seating portion.
4. A vessel according to claim 1, wherein the rotation preventing means comprises at least one convex portion. A vessel according to claim 4, wherein the convex portion is formed on the radially inner or outer edge of the seating portion. t t t i DATED this FIRST day of AUGUST 1990 Sanden Corporation St I It Patent Attorneys for the Applicant SPRUSON FERGUSON -6- RLF/ 1I 43h
AU80997/87A 1986-11-11 1987-11-11 Sealing mechanism for sealing aperture on closed vessel Ceased AU603152B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1986171911U JPH0542252Y2 (en) 1986-11-11 1986-11-11
JP61-171911 1986-11-11

Publications (2)

Publication Number Publication Date
AU8099787A AU8099787A (en) 1988-05-12
AU603152B2 true AU603152B2 (en) 1990-11-08

Family

ID=15932114

Family Applications (1)

Application Number Title Priority Date Filing Date
AU80997/87A Ceased AU603152B2 (en) 1986-11-11 1987-11-11 Sealing mechanism for sealing aperture on closed vessel

Country Status (7)

Country Link
US (1) US5165882A (en)
EP (1) EP0267760B1 (en)
JP (1) JPH0542252Y2 (en)
KR (1) KR880006476A (en)
CN (1) CN1010795B (en)
AU (1) AU603152B2 (en)
DE (1) DE3765908D1 (en)

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CA2119626A1 (en) * 1993-03-24 1994-09-25 Jaroslav J. Olmr Connecting rod
FR2827016B1 (en) * 2001-07-04 2004-07-09 Ge Med Sys Global Tech Co Llc QUARTER-TURN DEVICE FOR FIXING A COVER OR A SIMILAR ELEMENT ON A STRUCTURAL ELEMENT, IN PARTICULAR IN THE FIELD OF MEDICAL DEVICES
JP2003269329A (en) * 2002-03-15 2003-09-25 Sanden Corp Compressor for vehicle
KR100747233B1 (en) * 2006-04-07 2007-08-07 현대자동차주식회사 Assembly structure of a bearig unit for a solid of revolution at a timming chain cover and assembly method thereof
CN100470065C (en) * 2007-03-30 2009-03-18 重庆长安汽车股份有限公司 Water-proof screw-thread fastening piece
US8628312B2 (en) * 2010-03-31 2014-01-14 Emerson Climate Technologies, Inc. Compressor including anti-rotation washer and method of assembly
CN101858470B (en) * 2010-06-12 2015-01-07 海洋王照明科技股份有限公司 Through pipe connection structure
AU2013100400A4 (en) * 2013-04-02 2013-05-09 Illinois Tool Works Inc. Metal frame members for use in building construction
FR3035160B1 (en) * 2015-04-17 2018-03-23 Centre Technique Des Industries Mecaniques DEFORMABLE SCREW ASSEMBLY
CN106931241B (en) * 2015-12-31 2020-07-10 广州汽车集团股份有限公司 Car wiring harness via hole seals sound insulation construction
DE102016208665A1 (en) 2016-05-19 2017-11-23 Zf Friedrichshafen Ag Device for detachable axial connection of two shafts of a transmission
US10457414B2 (en) * 2016-12-13 2019-10-29 Arconic Inc. Reduced electromagnetic signature of conforming conical seal fastener systems
EP3450775B1 (en) * 2017-08-28 2022-03-09 3M Innovative Properties Company Connecting element for friction-increasing connection of components, process for fixing a connecting element to a component and use of a connecting element
EP3969766A4 (en) * 2019-05-14 2023-01-18 Topaz Trading Pty Ltd Threaded fastener pair, post anchor system and method of securing a post to a post anchor
TR201921792A1 (en) * 2019-12-26 2022-04-21 Roketsan Roket Sanayi Ve Ticaret Anonim Sirketi A BOLT ASSEMBLY WITH BALL COMPRESSION FACE FOR THE CANNISTER - AMMUNITION INTERFACE
CN112901778B (en) * 2021-01-13 2022-12-30 西安近代化学研究所 End face sealing device for threaded connection part

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Also Published As

Publication number Publication date
JPH0542252Y2 (en) 1993-10-25
CN1010795B (en) 1990-12-12
US5165882A (en) 1992-11-24
JPS6377114U (en) 1988-05-23
CN87107868A (en) 1988-05-25
KR880006476A (en) 1988-07-23
DE3765908D1 (en) 1990-12-06
AU8099787A (en) 1988-05-12
EP0267760B1 (en) 1990-10-31
EP0267760A1 (en) 1988-05-18

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